Anyone who's ever built a significant piece of technology knows the pain of bugs. The biggest problem? It's not the fixing … it's the finding.
These days, most companies are releasing software multiple times a week. In fact, according to Zend CMO Elaine Lennox, for "born-on-the-web" companies, this release cycle is several times a day. In that speedy environment, you don't want to spend a lot of time bugfixing.